Mike Blumenthal reports Google is now displaying full review snippets in the right side knowledge graph panel.
Here is a picture of the reviews in the knowledge graph:
Mike Blumenthal said on Google+:
They have been around for several months but now seem much more frequent. Along with every Google change (whether permanent or not) comes new questions. Like why does one restaurant with 9 reviews get the treatment while another restaurant down the road with the same number of reviews does not?
So more of the local results will also show reviews in them.
Forum discussion at Google+.